import contextlib
-from dataclasses import replace
import pathlib
import re
from contextlib import ExitStack as does_not_raise
+from dataclasses import replace
from typing import ContextManager
+import pytest
+from _pytest.monkeypatch import MonkeyPatch
from click.testing import CliRunner
-from black.handle_ipynb_magics import jupyter_dependencies_are_installed
+
from black import (
- main,
+ Mode,
NothingChanged,
format_cell,
format_file_contents,
format_file_in_place,
+ main,
)
-import pytest
-from black import Mode
-from _pytest.monkeypatch import MonkeyPatch
-from tests.util import DATA_DIR
+from black.handle_ipynb_magics import jupyter_dependencies_are_installed
+from tests.util import DATA_DIR, get_case_path, read_jupyter_notebook
with contextlib.suppress(ModuleNotFoundError):
import IPython
def test_entire_notebook_empty_metadata() -> None:
- with open(DATA_DIR / "notebook_empty_metadata.ipynb", "rb") as fd:
- content_bytes = fd.read()
- content = content_bytes.decode()
+ content = read_jupyter_notebook("jupyter", "notebook_empty_metadata")
result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
expected = (
"{\n"
def test_entire_notebook_trailing_newline() -> None:
- with open(DATA_DIR / "notebook_trailing_newline.ipynb", "rb") as fd:
- content_bytes = fd.read()
- content = content_bytes.decode()
+ content = read_jupyter_notebook("jupyter", "notebook_trailing_newline")
result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
expected = (
"{\n"
def test_entire_notebook_no_trailing_newline() -> None:
- with open(DATA_DIR / "notebook_no_trailing_newline.ipynb", "rb") as fd:
- content_bytes = fd.read()
- content = content_bytes.decode()
+ content = read_jupyter_notebook("jupyter", "notebook_no_trailing_newline")
result = format_file_contents(content, fast=True, mode=JUPYTER_MODE)
expected = (
"{\n"
def test_entire_notebook_without_changes() -> None:
- with open(DATA_DIR / "notebook_without_changes.ipynb", "rb") as fd:
- content_bytes = fd.read()
- content = content_bytes.decode()
+ content = read_jupyter_notebook("jupyter", "notebook_without_changes")
with pytest.raises(NothingChanged):
format_file_contents(content, fast=True, mode=JUPYTER_MODE)
def test_non_python_notebook() -> None:
- with open(DATA_DIR / "non_python_notebook.ipynb", "rb") as fd:
- content_bytes = fd.read()
- content = content_bytes.decode()
+ content = read_jupyter_notebook("jupyter", "non_python_notebook")
+
with pytest.raises(NothingChanged):
format_file_contents(content, fast=True, mode=JUPYTER_MODE)
def test_unparseable_notebook() -> None:
- path = DATA_DIR / "notebook_which_cant_be_parsed.ipynb"
+ path = get_case_path("jupyter", "notebook_which_cant_be_parsed.ipynb")
msg = rf"File '{re.escape(str(path))}' cannot be parsed as valid Jupyter notebook\."
with pytest.raises(ValueError, match=msg):
format_file_in_place(path, fast=True, mode=JUPYTER_MODE)
result = runner.invoke(
main,
[
- str(DATA_DIR / "notebook_trailing_newline.ipynb"),
+ str(get_case_path("jupyter", "notebook_trailing_newline.ipynb")),
"--diff",
f"--config={EMPTY_CONFIG}",
],
result = runner.invoke(
main,
[
- str(DATA_DIR / "notebook_without_changes.ipynb"),
+ str(get_case_path("jupyter", "notebook_without_changes.ipynb")),
"--diff",
f"--config={EMPTY_CONFIG}",
],
) -> None:
# Check that the cache isn't written to if Jupyter dependencies aren't installed.
jupyter_dependencies_are_installed.cache_clear()
- nb = DATA_DIR / "notebook_trailing_newline.ipynb"
+ nb = get_case_path("jupyter", "notebook_trailing_newline.ipynb")
tmp_nb = tmp_path / "notebook.ipynb"
- with open(nb) as src, open(tmp_nb, "w") as dst:
- dst.write(src.read())
+ tmp_nb.write_bytes(nb.read_bytes())
monkeypatch.setattr(
"black.jupyter_dependencies_are_installed", lambda verbose, quiet: False
)
) -> None:
# Check that the cache isn't written to if Jupyter dependencies aren't installed.
jupyter_dependencies_are_installed.cache_clear()
- nb = DATA_DIR / "notebook_trailing_newline.ipynb"
+ nb = get_case_path("jupyter", "notebook_trailing_newline.ipynb")
tmp_nb = tmp_path / "notebook.ipynb"
- with open(nb) as src, open(tmp_nb, "w") as dst:
- dst.write(src.read())
+ tmp_nb.write_bytes(nb.read_bytes())
monkeypatch.setattr(
"black.files.jupyter_dependencies_are_installed", lambda verbose, quiet: False
)
def test_ipynb_flag(tmp_path: pathlib.Path) -> None:
- nb = DATA_DIR / "notebook_trailing_newline.ipynb"
+ nb = get_case_path("jupyter", "notebook_trailing_newline.ipynb")
tmp_nb = tmp_path / "notebook.a_file_extension_which_is_definitely_not_ipynb"
- with open(nb) as src, open(tmp_nb, "w") as dst:
- dst.write(src.read())
+ tmp_nb.write_bytes(nb.read_bytes())
result = runner.invoke(
main,
[
def test_ipynb_and_pyi_flags() -> None:
- nb = DATA_DIR / "notebook_trailing_newline.ipynb"
+ nb = get_case_path("jupyter", "notebook_trailing_newline.ipynb")
result = runner.invoke(
main,
[